Process
Step 1: Stamping Molding
Molds the metal surface to form the design.
Step 2: Outline Cutting
- Cutting molds are made separately, then cut to the exact outline of the design.
- Additional outline cutting molds may be required depending on the complexity of the design. * If a center hole or cut-out is required, an additional cut-through mold must be used.
Step 3: Attachment
Solder attachment onto the back of each piece.
Step 4: Plating
Plating now can be processed. The quality of plating varies with the length of time the metal is soaked in the plating liquid.
Step 5: Polishing
The metal surface is then polished until it is smooth and shiny. This applies to copper material only. Iron can be polished if required, but this will incur a surcharge.
Step 6: Coloring
- Soft enamel is carefully inserted by hand, one color at a time, using different sized syringes. * Drying. * To prevent defects, a high degree of skill is required in order to keep each color and the correct amount of enamel in the proper area.
Step 7: Cleaning
Excess color and impurities are then wiped off the metal surfaces.
Step 8: Baking
The metal piece is baked at approximately 450F for12 to 15 minutes.
Step 9: Epoxy Coating
Clear epoxy is then applied to the surface to protect the enamel from color fading and cracking. (Epoxy coating is optional and provided according to customer’s requirements)
- The standard colors are based on the Pantone Chart.
- Bolder designs are recommended in order to prevent any unsatisfactory coloring caused by lines and figures that are too thin or too small.
- General enamel coloring requires a surrounding metal space to ensure good quality painting results. Therefore it is usually necessary to allow for a blank metal rim (0.3mm minimum).
For budget considerations, iron material can be used instead of copper, but without polishing.
Read more about this topic: Lapel Pin
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